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Chemiluminescencross linked C-telopeptide of type I collagen (CTX) for Automatic immunoassay analyzer in Bone Metabolism
Used in in vitro diagnostics as an indicator of bone resorption in
humans and contributes to
A. Monitor changes in bone resorption under the following
conditions
1. Anti-resorptive therapy in postmenopausal women
2. Hormone replacement therapy (HRT) with hormones and hormone-like
drugs
3. Bisphosphonate therapy 2) Anti-resorptive therapy for
individuals diagnosed with osteopenia
B. Predicting bone mineral density (BMD) response in postmenopausal women receiving antiresorptive therapy
1. Hormone replacement therapy (HRT) with hormones and hormone-like drugs 2. Bisphosphonate therapy
3. To a certain extent, it reflects the patient's disease activity and bone destruction.
4. As a sensitive bone metabolism index, CTX-1 has a certain reference value in predicting the occurrence of KOA and evaluating the therapeutic effect of knee osteoarthritis.
Application department of serum type I collagen C-terminal peptide kit:
Orthopedics / Endocrinology / Rheumatology / Physical Examination / Gynecology
Test item | CTX |
Specification | 100 Test/Box for CIA series |
24 Test/Box for POCT | |
Principle | CLIA |
Component | Magnetic Beads |
Calibrator Low | |
Calibrator High | |
CTX Anti | |
Control 1 | |
Control 2 | |
Accessories Required But Not Provided | Substrate |
Washing solution | |
Sample material | serum |
Sample volume | More than 200μL |
Storage | 2-8℃ |
Type I collagen is the most abundant form of collagen in the human
body and is the only collagen component in bone, accounting for
more than 90% of bone matrix.
During the continuous remodeling of the bone matrix throughout the
skeleton, type I collagen is degraded, the lower fragments are
released into the blood, and some appear in the urine.
Determination of the content and changes of these small fragments
in blood and urine can evaluate the state of bone resorption, which
is not only helpful for the diagnosis of metabolic bone disease,
but also can monitor and evaluate the efficacy of anti-bone
resorption drugs.
Collagen type I C-terminal peptide (CTX), one of these small
peptide fragments. The complete C-terminal peptide of type I
collagen contains 26 amino acids, and the 15th to 22nd amino acids
are in turn gluten-lys-propane=group-aspart-gly-glyc-arginine
(EKAHDGGR). The C-terminus of the collagen α1(I) chain is specific
and is called the 8 amino acid sequence (8AA). CTX is only derived
from mature collagen fibers, not from newly synthesized collagen;
it is neither degraded nor reused in the body, which can directly
reflect the degradation of collagen fibers; collagen diet has no
effect on it; it is more specific and reflects bone Smaller changes
in collagen turnover are more sensitive.
The clinical application of CTX is mainly to determine the state of
bone resorption in metabolic bone disease, and to detect and
evaluate the efficacy of anti-bone resorption drugs.